CVE-2026-1224VulnerabilityPublished 26 Jan 2026Updated 2 Feb 2026

CVE-2026-1224: Tanium Discover · Unthrottled Resource Allocation

Affects Tanium DiscoverSource CVE Database V5

Not known to be exploited · CVSS 4.9 Medium : upgrade to 4.15.130 or 4.10.134 when convenient.

Data as of 26 Oct 2026, 07:57 UTC

CVSS 3.1 base score

4.9Medium

How severe the flaw is on the 0–10 CVSS scale.

EPSS: 0.3% chance of exploitation in 30 days – higher than 32% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch: Available – fixed in 4.15.130, 4.10.134

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

Attack Vector: Network
Attack Complexity: Low
Privileges Required: High
User Interaction: None
Scope: Unchanged
Confidentiality: None
Integrity: None
Availability: High

Bold values are the worst case: easiest to exploit or largest impact.

Attack Vector: Network: The vulnerable component is bound to the network stack and the set of possible attackers extends beyond the other options listed, up to and including the entire Internet. Such a vulnerability is often termed 'remotely exploitable' and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers).
Attack Complexity: Low: Specialized access conditions or extenuating circumstances do not exist. An attacker can expect repeatable success against the vulnerable component.
Privileges Required: High: The attacker is authorized with (i.e., requires) privileges that provide significant (e.g., administrative) control over the vulnerable component that could affect component-wide settings and files.
User Interaction: None: The vulnerable system can be exploited without any interaction from any user.
Scope: Unchanged: An exploited vulnerability can only affect resources managed by the same security authority. In this case, the vulnerable component and the impacted component are either the same, or both are managed by the same security authority.
Confidentiality: None: There is no loss of confidentiality within the impacted component.
Integrity: None: There is no loss of integrity within the impacted component.
Availability: High: There is total loss of availability, resulting in the attacker being able to fully deny access to resources in the impacted component; this loss is either sustained (while the attacker continues to deliver the attack) or persistent (the condition persists even after the attack has completed). Alternatively, the attacker has the ability to deny some availability, but the loss of availability presents a direct, serious consequence to the impacted component (e.g., the attacker cannot disrupt existing connections, but can prevent new connections; the attacker can repeatedly exploit a vulnerability that, in each instance of a successful attack, leaks a only small amount of memory, but after repeated exploitation causes a service to become completely unavailable).

Definitions: FIRST CVSS v3.1 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 26 Jan 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-26.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, or CISA SSVC reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Upgrade Tanium Discover to 4.15.130 or 4.10.134.

Affected software

Product	Affected	Fixed in
TaniumDiscover	Affected >=4.10 <4.10.134 >=4.15 <4.15.130	Fixed in 4.15.130 4.10.134

CPE configurations (2)

cpe:2.3:a:tanium:service_asset:4.10.133:*:*:*:*:*:*:*
cpe:2.3:a:tanium:service_asset:4.15.129:*:*:*:*:*:*:*

AI-suggested

1. 2. Restrict network access to Tanium Discover management interfaces to trusted administrators only, using network segmentation and firewall rules. 3. Implement strict access controls and monitor for unusual administrative activity to prevent privilege escalation or misuse. 4. Monitor resource utilization metrics on servers running Tanium Discover to detect abnormal spikes that may indicate exploitation attempts. 5. Use rate limiting or traffic shaping at the network level to prevent excessive requests that could trigger resource exhaustion. 6. Conduct regular security audits and vulnerability assessments to ensure no other related weaknesses exist. 7. Develop incident response plans that include scenarios involving denial of service on critical management tools like Tanium Discover. 8. Educate privileged users on security best practices to reduce risk of credential compromise. These steps go beyond generic advice by focusing on network controls, monitoring, and administrative security tailored to the nature of this vulnerability.

Description

Tanium addressed an uncontrolled resource consumption vulnerability in Discover.

Impact

For European organizations, the primary impact of CVE-2026-1224 is on the availability of Tanium Discover services. Tanium Discover is often deployed in large enterprises and critical infrastructure sectors for asset visibility and network management. Disruption of this service could impair security monitoring and incident response capabilities, increasing the risk of undetected threats or delayed remediation. Since the vulnerability requires high privileges, insider threats or compromised administrative accounts could exploit it to cause denial of service. The lack of confidentiality or integrity impact limits the scope to availability, but availability is critical in operational environments. Organizations relying heavily on Tanium Discover for real-time network visibility may experience operational delays or outages, affecting compliance and security posture. The absence of known exploits reduces immediate risk but does not eliminate the threat, especially as attackers may develop exploits over time. European entities in sectors such as finance, energy, healthcare, and government, which often use Tanium products, could face significant operational challenges if this vulnerability is exploited.

References

security.tanium.com/TAN-2026-001 (opens in a new tab)

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